Meaning

noun perennial herb of East Indies to Polynesia and Australia; cultivated for its large edible root yielding Otaheite arrowroot starch

originEtymology tree Proto-Malayo-Polynesian *ʀambia Proto-Oceanic *ʀabia Proto-Polynesian *pia Hawaiian piabor. English pia Borrowed from Hawaiian pia.

Etymology from Wiktionary, CC BY-SA 3.0